What To Do With All The Receipts

I am in a cleaning out mode now. Cleaning out closets, the laundry room, the spare room, etc. And I have too much paper! Too many papers from law school still around, too many magazines, newspapers, receipts from an epson receipt printer, old birthday cards I don't want to throw out. Good golly! What to do? All I know to do is sort through and throw out a little at a time. But I need to step it up. I want my house like it used to be.